General
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Target
VirusShare_09b500283366eafb809963ae3341e9c0
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Size
336KB
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Sample
240610-mfczksgd76
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MD5
09b500283366eafb809963ae3341e9c0
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SHA1
628610489c41e78617f4e51d0d0143a07b245f85
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SHA256
8506824ad4a9aabf540bbf58741412448178b846e540fbbfdf2a4e48acfe46da
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SHA512
7ecb3ed388e2866cbb0331d50d910ce3810f8b9bc1ece963e2cc67c5eaff017d2109e7ccb9d022b8960f78cca243c36bbdb29e0f78fdfc32a78cf2daea6ea796
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SSDEEP
6144:r1w0U6D6x4kyjf+g0uc2RTqWmx7Ikw9NShXvSmk2OpXaP/EBySkQ4:ri0Uu6ikyjcuk5y0hXaxpKkB
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_09b500283366eafb809963ae3341e9c0.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
VirusShare_09b500283366eafb809963ae3341e9c0.exe
Resource
win10v2004-20240508-en
Malware Config
Extracted
C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\Recovery+ynhye.txt
teslacrypt
http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/FD8ADE14D064D4E4
http://tes543berda73i48fsdfsd.keratadze.at/FD8ADE14D064D4E4
http://tt54rfdjhb34rfbnknaerg.milerteddy.com/FD8ADE14D064D4E4
http://xlowfznrg4wf7dli.ONION/FD8ADE14D064D4E4
Extracted
C:\Program Files\7-Zip\Lang\Recovery+oaocn.txt
teslacrypt
http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/FB64F52CF0EB942
http://tes543berda73i48fsdfsd.keratadze.at/FB64F52CF0EB942
http://tt54rfdjhb34rfbnknaerg.milerteddy.com/FB64F52CF0EB942
http://xlowfznrg4wf7dli.ONION/FB64F52CF0EB942
Targets
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Target
VirusShare_09b500283366eafb809963ae3341e9c0
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Size
336KB
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MD5
09b500283366eafb809963ae3341e9c0
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SHA1
628610489c41e78617f4e51d0d0143a07b245f85
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SHA256
8506824ad4a9aabf540bbf58741412448178b846e540fbbfdf2a4e48acfe46da
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SHA512
7ecb3ed388e2866cbb0331d50d910ce3810f8b9bc1ece963e2cc67c5eaff017d2109e7ccb9d022b8960f78cca243c36bbdb29e0f78fdfc32a78cf2daea6ea796
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SSDEEP
6144:r1w0U6D6x4kyjf+g0uc2RTqWmx7Ikw9NShXvSmk2OpXaP/EBySkQ4:ri0Uu6ikyjcuk5y0hXaxpKkB
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TeslaCrypt, AlphaCrypt
Ransomware based on CryptoLocker. Shut down by the developers in 2016.
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (432) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Drops startup file
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Executes dropped EXE
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Adds Run key to start application
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Suspicious use of SetThreadContext
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